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