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)(12,13)(16,17)(19,20,24,27)(21,25,29,22)(23,31,32,26)(28,30,34,33)(11,12,15,13)(14,17,18,16)(19,21)(20,25)(22,27)(23,28)(24,29)(26,33)(30,31)(32,34)(4,5)(8,9)(11,13,15,12)(14,17,18,16)(19,22)(20,21)(23,30)(24,25)(26,28)(27,29)(31,34)(32,33)(3,5,7,4)(6,9,10,8)(11,14,15,18)(12,16,13,17)(19,21)(20,25)(22,27)(23,28)(24,29)(26,33)(30,31)(32,34)(3,6,7,10)(4,8,5,9)(19,23,24,32)(20,26,27,31)(21,28,29,34)(22,30,25,33)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.