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