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