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