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