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