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