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