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