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