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