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