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