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