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