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