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