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