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