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