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