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