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