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