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