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