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