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