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