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