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