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