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