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