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