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