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