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