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