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