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