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