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