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