One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,9,12)(7,13,15,10)(8,16,17,11)(14,18,20,19)(21,22)(23,34)(24,30)(25,36)(26,32)(27,33)(28,31)(29,35)(5,7)(6,10)(8,14)(9,15)(11,18)(12,13)(16,19)(17,20)(21,23)(22,29)(24,36)(25,26)(27,35)(28,30)(31,32)(33,34) involution — undirected(2,4)(21,24,28,34,27,32,25,29)(22,30,31,23,33,26,36,35)(5,8,9,17)(6,11,12,16)(7,14,15,20)(10,18,13,19)(21,25,27,28)(22,31,33,36)(23,26,35,30)(24,29,32,34)(7,15)(10,13)(14,20)(18,19)(21,26,28,35,27,30,25,23)(22,32,31,29,33,24,36,34)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.