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