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