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