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