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