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