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