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