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