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