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