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