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