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