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