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