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