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