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