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