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