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