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