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