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