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