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