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