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