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