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