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