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