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