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