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