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