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