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