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