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