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