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)(21,22,27,31)(23,32,34,26)(24,35,33,29)(25,36,28,30)(5,7,10,16)(6,11,13,14)(8,15,9,18)(12,19,17,20)(21,23)(22,26)(24,28)(25,33)(27,34)(29,30)(31,32)(35,36)(2,4)(21,24,25,34,27,33,28,23)(22,29,36,32,31,35,30,26)(5,8,10,9)(6,12,13,17)(7,15,16,18)(11,19,14,20)(21,25,27,28)(22,30,31,36)(23,33,34,24)(26,29,32,35)(5,9,10,8)(6,12,13,17)(7,15,16,18)(11,20,14,19)(21,26,28,35,27,32,25,29)(22,23,30,33,31,34,36,24)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.