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