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