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