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)(23,31)(24,28)(25,38)(26,29)(27,34)(30,40)(32,47)(33,46)(35,49)(36,44)(37,52)(39,42)(41,48)(43,50)(45,51) involution — undirected(5,7)(6,10)(8,14)(9,13)(11,17)(12,18)(15,20)(16,19)(21,23)(22,27)(24,35)(25,39)(26,33)(28,43)(29,42)(30,46)(31,38)(32,36)(34,40)(37,48)(41,44)(45,47)(49,52)(50,51) involution — undirected(1,2,3,4)(6,11)(7,13)(12,15)(14,19)(21,24,26,36)(22,28,29,44)(23,32,33,35)(25,37,40,51)(27,41,42,43)(30,45,38,52)(31,47,46,49)(34,48,39,50)(7,13)(10,17)(14,19)(18,20)(23,33)(24,36)(27,42)(28,44)(31,46)(34,39)(37,51)(45,52) involution — undirected(5,8,9,16)(6,12,11,15)(7,14,13,19)(10,18,17,20)(22,29)(24,36)(27,42)(30,38)(31,46)(32,35)(37,51)(48,50)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.