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)(23,30)(27,35)(31,36)(32,33)(5,7,10,16)(6,11,13,14)(8,15,9,18)(12,19,17,20)(21,22)(23,31)(24,28)(25,29)(26,34)(27,33)(30,36)(32,35)(2,4)(21,23,26,33,25,30,24,32)(22,27,28,31,29,35,34,36)(5,8,10,9)(6,12,13,17)(7,15,16,18)(11,19,14,20)(21,24,25,26)(22,28,29,34)(23,32,30,33)(27,31,35,36)(5,9,10,8)(6,12,13,17)(7,15,16,18)(11,20,14,19)(21,23,24,32,25,30,26,33)(22,27,34,36,29,35,28,31)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.