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