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