It's just a baby and needs time to settle in and feel safe in it's new environment. Add that to the fact that with it's very basic reptilian brain it can't recognize you yet as anything other than a big, heat emitting thing that likely wants to eat it. Baby snakes are often just as much prey as a predator so their instincts drive them to act accordingly.

You've got years and years to build a handling relationship. For now I think your priority is helping the snake settle in, making sure it's eating consistently and correctly, pooping, peeing, shedding....all that stuff that indicates a healthy snake.