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