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