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