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