One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(8,16)(11,17)(15,20)(18,19)(21,22,27,39,25,28,26,31)(23,32,38,29,34,45,35,41)(24,30,40,50,36,42,37,44)(33,46,49,43,47,52,48,51)(1,2,3,4)(5,6,9,12)(7,13,14,10)(8,17,16,11)(15,18,20,19)(22,28)(24,36)(29,41)(31,39)(32,45)(33,47)(37,40)(48,49)(5,7)(6,10)(8,15)(9,14)(11,18)(12,13)(16,20)(17,19)(21,23,25,34)(22,29,28,41)(24,33,36,47)(26,38,27,35)(30,43,42,51)(31,45,39,32)(37,49,40,48)(44,52,50,46)(2,4)(7,14)(10,13)(15,20)(18,19)(21,24,25,36)(22,30,28,42)(23,33,34,47)(26,37,27,40)(29,43,41,51)(31,44,39,50)(32,46,45,52)(35,48,38,49)(5,8,9,16)(6,11,12,17)(7,15,14,20)(10,18,13,19)(22,28)(24,36)(29,41)(31,39)(32,45)(33,47)(37,40)(48,49)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.