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