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