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