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