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