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