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