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