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