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