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