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