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