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)(17,18,23,22)(19,25,20,24)(21,26,29,30)(27,32,28,31)(33,34,40,44)(35,41,46,48)(36,42,37,39)(38,43,45,47)(1,2)(3,9)(4,8)(5,6)(7,11)(10,15)(12,13)(14,16)(17,19,23,20)(18,24,22,25)(21,27,29,28)(26,31,30,32)(33,35,40,46)(34,41,44,48)(36,47,37,43)(38,39,45,42)(2,6)(7,9)(8,12)(14,15)(33,36,40,37)(34,42,44,39)(35,43,46,47)(38,41,45,48)(1,2)(3,7)(4,8)(5,6)(9,11)(10,14)(12,13)(15,16)(17,20,23,19)(18,25,22,24)(21,27,29,28)(26,31,30,32)(33,37,40,36)(34,39,44,42)(35,43,46,47)(38,41,45,48)(1,3)(2,7)(4,10)(5,11)(6,9)(8,14)(12,15)(13,16)(17,21,23,29)(18,26,22,30)(19,27,20,28)(24,31,25,32)(33,38)(34,43)(35,39)(36,41)(37,48)(40,45)(42,46)(44,47)(1,4)(2,8)(3,10)(5,13)(6,12)(7,14)(9,15)(11,16)(17,22,23,18)(19,25,20,24)(21,26,29,30)(27,31,28,32)(33,39)(34,36)(35,45)(37,44)(38,46)(40,42)(41,47)(43,48)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.