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