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