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