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