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