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