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