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