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