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