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