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