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