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