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