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