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