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