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