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