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)(24,35)(25,30)(26,40)(27,31)(29,37)(32,46)(33,42)(34,44)(36,45)(38,49)(39,43)(41,47)(48,51)(50,52)(1,3,4,2)(5,7)(6,10)(8,15)(9,14)(11,13)(12,17)(16,20)(18,19)(21,23,27,34)(22,28,31,44)(24,32,38,48)(25,39,26,33)(29,41,45,52)(30,43,40,42)(35,46,49,51)(36,50,37,47)(7,14)(10,13)(15,20)(17,19)(21,24,25,36,27,38,26,37)(22,29,40,49,31,45,30,35)(23,32,39,50,34,48,33,47)(28,41,42,51,44,52,43,46)(6,11)(10,13)(12,18)(17,19)(21,25,27,26)(22,30,31,40)(23,33,34,39)(24,36,38,37)(28,42,44,43)(29,35,45,49)(32,47,48,50)(41,51,52,46)(5,8,9,16)(6,12,11,18)(7,15,14,20)(10,17,13,19)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.