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