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