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