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