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