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