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