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