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