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