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