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