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