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