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