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