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