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