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