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