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