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