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