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