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