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