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