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