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