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