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