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