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