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