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