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