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