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