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