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