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