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