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