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