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