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