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