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