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