There are numerous figures of speech in this short story, including similes, metaphors, and instances of personification.
A simile is a comparison of unlike things for effect using "like" or "as." A metaphor is a direct comparison of unlike things for effect without either of those words. Personification means attributing human attributes to concepts or ideas or to inanimate objects.
One simile in the story appears on the first page:
The children pressed to each other like so many roses.
Farther down, another simile says that the children:
turned on themselves like a feverish wheel.
Two metaphors, of a "tatting drum" and "clear bead necklaces" compare the rain to objects and/or the sound they make:
But then they always awoke to the tatting drum, the endless shaking down of clear bead necklaces upon the roof.
Another metaphor uses "crystal" similarly:
the sweet crystal fall of showers.
Further down, a metaphor concerns Margaret:
She was an old photograph dusted from an album.
The same sentence uses personification, giving her voice humanlike qualities:
her voice would be a ghost.
Another metaphor one also emphasizes her pallor:
They hated her pale snow face.