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