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