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