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