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