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