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