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