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