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