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