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