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