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