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