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