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