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