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