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