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