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