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