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