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