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