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)(17,18,22,24)(19,25,26,20)(21,23,29,30)(27,31,32,28)(33,34)(35,43)(36,47)(37,42)(38,39)(40,46)(41,45)(44,48)(1,3)(2,8)(4,13)(5,7)(6,14)(9,11)(10,16)(12,15)(17,18)(19,20)(21,23)(22,24)(25,26)(27,28)(29,30)(31,32)(33,35,39,46)(34,40,38,43)(36,44,45,37)(41,48,47,42)(2,9)(3,5)(4,15)(6,16)(19,26)(20,25)(21,29)(23,30)(34,38)(36,45)(37,44)(40,43) involution — undirected(1,4,7,15)(2,10,9,14)(3,13,5,12)(6,8,16,11)(17,19,22,26)(18,20,24,25)(21,27,29,32)(23,28,30,31)(33,36)(34,41)(35,44)(37,46)(38,47)(39,45)(40,48)(42,43)(1,5,7,3)(2,11,9,8)(4,13,15,12)(6,10,16,14)(17,20)(18,19)(21,28)(22,25)(23,27)(24,26)(29,31)(30,32)(33,37,39,44)(34,42,38,48)(35,45,46,36)(40,47,43,41)(1,6,7,16)(2,12,9,13)(3,14,5,10)(4,8,15,11)(17,21)(18,23)(19,27)(20,28)(22,29)(24,30)(25,31)(26,32)(33,38,39,34)(35,43,46,40)(36,47,45,41)(37,48,44,42)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.