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