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