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