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