Of course it could--if the Soviet Union had radically changed its policies, philosophies, and politics. Since that was not going to happen, the answer to your question has to be no. Both countries were entrenched in their ideologies and practices, and without a true meeting of the minds and a willingness to change, nothing could have happened to avert the clash. Things are certainly better, but the two countries are still diametrically opposed on a host of core issues.
I do not believe the conflict between the USSR and USA could be avoided at that time. As someone else stated we were able to put our differences aside to work to defeat Hitler. After that was completed it was inevitable that there would be some conflict.
In my opinion, the conflict would have been very difficult to avoid.
The US and USSR had only been allies for so long as the Soviets were seen as a help in fighting Nazi Germany. American statesmen did not trust the Soviets because of the fact that the USSR was a communist country but also because of actions such as the Soviet non-agression pact with Nazi Germany.
At the same time, the Soviets did not trust the Americans because the US had been opposed to them ever since the time that their country was founded. For example, the US refused to recognize the Soviet Union for quite some time.
So there was very little trust between the two. Once their common enemy was defeated, there was very little to keep them from coming into conflict.
The conflicts of interests and ideology was very much there between the USA and the USSR. This was just there. There is no way one could have changed the reality of existence of this conflict. All that could have been different was the way USSR and USA responded to the conflicts. USSR could have been less aggressive in pursuing its goals of extending communism to other countries. USA could have been less aggressive in opposing communism and let USSR do what it wanted. Any such action would have meant different equations in terms of power balance. But the basic conflict would still have been there.
Even today thought the intensity of rivalry between USA and Russia is not there, we cannot rule out the possibility of new international conflicts of interest and ideologies developing in form of opposition to US actions in countries like Afghanistan and Iraq.