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