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