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