Rated to 28t, but can go 32t with the screw limiters adjusted.
Subject to hanger geometry, and a willingness to accept crappy shifting at the top end because you've used the B-tension adjustment to move the upper pulley miles away from the cassette :-)
Possibly a mistake, RD-5700-GS is only rated to 28T max, you can usually cheat a bit but 32 is probably pushing it too far.