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