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