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