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