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