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)(21,22,27,33,26,24,25,29)(23,28,34,36,31,30,32,35)(1,2)(3,4)(5,7,9,16)(6,10,13,19)(8,17,18,15)(11,14,12,20)(21,23)(22,28)(24,30)(25,32)(26,31)(27,34)(29,35)(33,36)(2,4)(21,24,26,22)(23,30,31,28)(25,29,27,33)(32,35,34,36)(6,11)(8,18)(10,14)(12,13)(15,17)(19,20)(23,31)(28,30)(32,34)(35,36) 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.