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