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