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