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