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