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