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