One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4,6,10,8,12,7,11)(5,13,14,9,16,17,15,18)(19,20)(21,27,29,24)(22,25)(23,26)(28,33,34,31)(30,32)(3,5,7,15,8,16,6,14)(4,9,10,17,12,18,11,13)(19,21)(20,24)(22,28)(23,29)(25,31)(26,27)(30,34)(32,33)(3,6,8,7)(4,10,12,11)(5,14,16,15)(9,17,18,13)(19,22,23,30)(20,25,26,32)(21,28,29,34)(24,31,27,33)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.