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