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