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