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