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