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