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)(17,18,22,26)(19,23,27,30)(20,24,29,32)(21,25,31,28)(33,34)(35,41)(36,46)(37,43)(38,42)(39,40)(44,48)(45,47)(2,7)(4,9)(8,13)(12,15)(17,19)(18,23)(20,28)(21,24)(22,27)(25,29)(26,30)(31,32)(33,35,40,37)(34,41,39,43)(36,45,38,44)(42,48,46,47)(2,7)(3,10)(5,14)(12,15)(19,27)(20,29)(23,30)(24,32)(33,36,40,38)(34,42,39,46)(35,44,37,45)(41,47,43,48)(1,3,6,10)(2,4,7,9)(5,11,14,16)(8,12,13,15)(17,20)(18,24)(19,28)(21,23)(22,29)(25,27)(26,32)(30,31)(33,37,40,35)(34,43,39,41)(36,44,38,45)(42,47,46,48)(1,4)(2,3)(5,12)(6,9)(7,10)(8,11)(13,16)(14,15)(17,21)(18,25)(19,24)(20,30)(22,31)(23,29)(26,28)(27,32)(33,38,40,36)(34,42,39,46)(35,45,37,44)(41,47,43,48)(1,5)(2,8)(3,11)(4,12)(6,14)(7,13)(9,15)(10,16)(17,19)(18,23)(20,28)(21,24)(22,27)(25,29)(26,30)(31,32)(33,39,40,34)(35,43,37,41)(36,42,38,46)(44,47,45,48)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.