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