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