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