It's interesting that whenever angels are depicted in art they invariably have wings, and yet God never does. It seems that there aren't many serious depictions of God other than as a cloud or a bright light, but even when he is depicted in a human-like form (or do humans have a God-like form?) he is never winged. (For instance, Michelangelo's Sistine Chapel, below.)
Maybe God, unlike his angels, just doesn't have anywhere to go. On the one hand, it must be nice to be omnipresent; on the other, I suppose that when you're God, everyone comes to you. And when you do go out, you've got angels to carry you around.