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