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