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