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