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