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