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