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