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