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