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