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