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