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