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