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