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