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