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