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