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