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