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