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