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