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