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