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