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