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