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