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