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