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