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