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