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