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