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