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