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