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