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