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