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