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