One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(5,9)(7,10)(12,14)(16,17)(19,20,24,25)(21,26,22,23)(3,4)(5,10)(6,8)(7,9)(12,14)(16,17)(19,21,24,22)(20,23,25,26)(3,4,6,8)(5,7,9,10)(11,12,15,14)(13,17,18,16)(19,22,24,21)(20,23,25,26)(3,4)(5,7)(6,8)(9,10)(11,13,15,18)(12,16,14,17)(19,23)(20,21)(22,25)(24,26)(3,5,6,9)(4,7,8,10)(11,14,15,12)(13,17,18,16)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.