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