One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6,8,7)(9,10,13,11)(12,15,16,14)(17,18)(19,24)(20,26)(21,29)(22,23)(25,30)(27,28)(31,32)(6,7)(9,10)(11,13)(12,14)(15,16)(18,23)(19,26)(25,29)(27,32) involution — undirected(6,7)(10,11)(14,15)(17,19,22,26)(18,24,23,20)(21,27,30,32)(25,31,29,28)(1,2)(3,4)(5,7,8,6)(9,11,13,10)(12,15,16,14)(17,20,22,24)(18,19,23,26)(21,28,30,31)(25,27,29,32)(9,12)(10,14)(11,15)(13,16)(17,21)(18,25)(19,27)(20,28)(22,30)(23,29)(24,31)(26,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.