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