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