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