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