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