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