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