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