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)(17,18,22,26)(19,21,25,23)(20,24,30,28)(27,29,32,31)(33,34,39,44)(35,45,46,40)(36,41,43,38)(37,42,47,48)(1,3,7,5)(2,8,10,6)(4,11,12,14)(9,15,16,13)(17,19,22,25)(18,23,26,21)(20,27,30,32)(24,31,28,29)(35,46)(37,47)(40,45)(42,48)(3,5)(4,12)(6,8)(9,16)(17,18,22,26)(19,23,25,21)(20,28,30,24)(27,29,32,31)(33,35,39,46)(34,40,44,45)(36,37,43,47)(38,42,41,48)(1,4)(2,9)(3,11)(5,14)(6,13)(7,12)(8,15)(10,16)(17,18)(19,23)(20,28)(21,25)(22,26)(24,30)(27,29)(31,32)(33,36,39,43)(34,41,44,38)(35,47,46,37)(40,42,45,48)(1,5,7,3)(2,6,10,8)(4,11,12,14)(9,15,16,13)(17,20)(18,24)(19,27)(21,29)(22,30)(23,31)(25,32)(26,28)(33,37,39,47)(34,42,44,48)(35,36,46,43)(38,45,41,40)(1,6)(2,3)(4,13)(5,10)(7,8)(9,11)(12,15)(14,16)(17,21,22,23)(18,25,26,19)(20,29,30,31)(24,32,28,27)(33,38,39,41)(34,43,44,36)(35,48,46,42)(37,45,47,40)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.