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