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