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