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