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)(11,14)(12,16)(13,17)(15,18)(19,23)(20,21)(22,24) involution — undirected(2,5)(3,7)(9,10)(11,12)(13,21)(14,16)(15,18)(17,20)(19,22)(23,24) involution — undirected(9,11,14,10,15,16,12,18)(13,19,23,17,22,21,20,24)(2,5)(6,8)(9,12,15,14)(10,16,18,11)(13,20,22,23)(17,21,24,19)(1,3,4,7)(2,6,5,8)(9,13)(10,17)(11,19)(12,20)(14,23)(15,22)(16,21)(18,24)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.