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)(23,31)(24,35)(25,27)(26,40)(28,34)(29,36)(30,39)(32,46)(33,48)(37,45)(38,44)(41,47)(42,52)(43,50)(49,51) involution — undirected(2,3)(5,7)(6,11)(8,15)(9,16)(10,17)(12,19)(13,14)(18,20)(22,27)(23,32)(24,36)(30,40)(34,47)(38,49)(42,43)(45,48) involution — undirected(1,2,4,3)(5,8,10,9)(6,12,13,18)(7,15,17,16)(11,19,14,20)(21,23,26,34,25,32,39,47)(22,28,30,31,27,41,40,46)(24,37,38,52,36,33,49,50)(29,43,44,48,35,42,51,45)(5,9,10,8)(6,12,13,18)(7,16,17,15)(11,19,14,20)(21,24,25,36)(22,29,27,35)(23,33,32,37)(26,38,39,49)(28,42,41,43)(30,44,40,51)(31,45,46,48)(34,50,47,52)(1,3,4,2)(7,17)(11,14)(15,16)(19,20)(24,36)(29,35)(33,37)(38,49)(42,43)(44,51)(45,48)(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.