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