One vertex per element, one color per generator, with an edge from x to x·s.
(10,12)(14,15)(17,18)(19,26)(20,24)(21,29)(22,23)(25,30)(27,28)(31,32) involution — undirected(1,2,5,6)(3,4,7,8)(9,10,13,12)(11,15,16,14)(18,23)(19,24)(21,30)(28,32)(2,6)(3,7)(9,11,13,16)(10,14,12,15)(18,23)(20,26)(25,29)(28,32)(2,6)(3,7)(9,12,13,10)(11,15,16,14)(17,19,22,24)(18,20,23,26)(21,27,30,31)(25,28,29,32)(1,3)(2,4)(5,7)(6,8)(17,20)(18,24)(19,23)(21,28)(22,26)(25,31)(27,29)(30,32) involution — undirected(1,4)(2,3)(5,8)(6,7)(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.