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