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