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