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