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