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