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