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