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