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