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