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