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