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