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