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