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