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