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