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