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)(21,22,28,25,27,31,26,32)(23,30,36,29,24,34,33,35)(5,7,10,6)(8,11,15,13)(9,12,17,14)(16,19,20,18)(21,23)(22,29)(24,27)(25,30)(26,36)(28,33)(31,35)(32,34)(1,2,3,4)(5,8,10,15)(6,11,7,13)(9,16,17,20)(12,18,14,19)(21,24,27,23)(22,30,31,34)(25,29,32,35)(26,36,28,33)(8,15)(11,13)(16,20)(18,19)(21,25,26,22,27,32,28,31)(23,29,33,30,24,35,36,34)(5,9,10,17)(6,12,7,14)(8,16,15,20)(11,18,13,19)(22,31)(23,24)(25,32)(33,36)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.