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