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