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