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