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