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