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