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