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