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