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)(23,31)(24,35)(25,29)(26,40)(27,33)(28,38)(30,39)(32,46)(34,42)(36,50)(37,49)(41,51)(43,47)(44,52)(45,48)(1,3,4,2)(5,7)(6,10)(8,15)(9,14)(11,13)(12,17)(16,20)(18,19)(21,23)(22,27)(24,36)(25,33)(26,34)(28,43)(29,31)(30,42)(32,37)(35,46)(38,51)(39,48)(40,45)(41,44)(47,52)(49,50)(7,14)(10,13)(15,20)(17,19)(21,24,26,38,25,37,39,52)(22,28,30,35,29,44,40,49)(23,32,34,47,33,36,48,51)(27,41,42,50,31,43,45,46)(6,11)(10,13)(12,18)(17,19)(22,29)(23,33)(28,44)(30,40)(32,36)(34,48)(35,49)(47,51) involution — undirected(5,8,9,16)(6,12,11,18)(7,15,14,20)(10,17,13,19)(23,33)(27,31)(32,36)(34,48)(41,43)(42,45)(46,50)(47,51)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.