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