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