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