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