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