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