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