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