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