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