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