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