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