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