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